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UPLC-MS/MS法测定槲寄生抗肿瘤成分1,7-bis(4-hydroxyphenyl)-1,4-heptadien-3-one的含量 被引量:2
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作者 张照燕 龙猜 +3 位作者 田秀敏 于治国 党晓伟 赵云丽 《沈阳药科大学学报》 CAS CSCD 北大核心 2018年第1期53-57,共5页
目的建立超高效液相色谱-串联质谱法(UPLC/MS/MS)测定槲寄生中具有抗肿瘤活性的新化合物1,7-bis(4-hydroxyphenyl)-1,4-heptadien-3-one(BHPHD)的含量,并通过多因素方差分析比较产地与寄主对药材抗肿瘤成分含量的影响。方法以Thermo Hyp... 目的建立超高效液相色谱-串联质谱法(UPLC/MS/MS)测定槲寄生中具有抗肿瘤活性的新化合物1,7-bis(4-hydroxyphenyl)-1,4-heptadien-3-one(BHPHD)的含量,并通过多因素方差分析比较产地与寄主对药材抗肿瘤成分含量的影响。方法以Thermo Hypersil GOLD C18(50 mm×2.1 mm,1.9μm)为分离色谱柱,乙腈-体积分数0.1%甲酸水溶液为流动相,流速0.2 m L·min-1,梯度洗脱,质谱检测器,电喷雾正离子,多反应监测模式,监测离子对m/z 295.09→106.99。结果BHPHD在质量浓度为0.050~2.5 mg·L-1内线性关系良好,精密度、重复性、稳定性试验的RSD均≤3.5%,平均加样回收率(n=9)为97.2%(RSD=1.6%)。结论该方法可满足定量要求。多因素方差分析表明槲寄生中BHPHD的含量受产地影响较大(P<0.01),受寄主影响不大。 展开更多
关键词 槲寄生 1 7-bis(4-hydroxyphenyl)-1 4-heptadien-3-one 超高效液相色谱-串联质谱 含量测定
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Synthesis of a New Ligand Containing 1, 7-Diaza-12-crown-4 and the Application in Asymmetric Cyclopropanation Reaction
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作者 Cheng Yun WANG Zhi Cai SHANG +1 位作者 Jiang Hua MEI Qing Sen YU 《Chinese Chemical Letters》 SCIE CAS CSCD 2003年第6期579-580,共2页
A new chiral multidenate ligand (S, S)-1,7-bis(4-benzyloxazolin-2-yl-methyl)-1, 7-diaza- 12-crown-4 1 has been synthesized and used as ligand in the copper catalyzed asymmetric cyclopropanation of 1, 1-diphenylethylene.
关键词 S S)-1 7-bis (4-benzyloxazolin-2-yl-methyl)-1 7-diaza-12-crown-4 asymmetric cy-clopropanation
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Syntheses,Structures and Photocurrent Response Properties of Two Crystals Based on Tetrathiafulvalene Derivatives 被引量:1
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作者 XIAO Ning HAN Lei +2 位作者 WEN Yi-Hang WANG Le-Jia XIAO Xun-Wen 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2021年第6期759-766,685,共9页
In this paper,two compounds[Zn_(2)^(2+)(2,6-bis(4΄-pyridyl)-TTF)(TPA)_(2)^(2-)](1)and[Cd^(2+)(2,6(7)-bis(4΄-pyridyl)-TTF)(TPA)2-(H_(2)O)_(2)](TTF=tetrathiafulvalene,TPA=terephthalic acid)(2)were synthesized by using s... In this paper,two compounds[Zn_(2)^(2+)(2,6-bis(4΄-pyridyl)-TTF)(TPA)_(2)^(2-)](1)and[Cd^(2+)(2,6(7)-bis(4΄-pyridyl)-TTF)(TPA)2-(H_(2)O)_(2)](TTF=tetrathiafulvalene,TPA=terephthalic acid)(2)were synthesized by using solvothermal method and characterized by single-crystal X-ray.The purity of the two compounds was confirmed by their PXRD data.We also tested the photocurrent responses of these two compounds,and found they could generate photocurrent signal when exposed to light,but the photocurrent intensity of compound 2 is significantly greater than that of 1.From the crystal structure analysis,the possible reason for this phenomenon is that 2 has a more compact ligand arrangement than 1,leading to a higher carrier density and easier excitation. 展开更多
关键词 2 6(7)-bis(4′-pyridyl)-tetrathiafulvalene crystal structure interpenetrating photocurrent responses
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